Correct SAE Bolt Replacement for a Metric M8 x 15mm Bolt

Updated 06/21/2023 | Published 06/20/2023

Question:

I have an ARKSEN hitch-mount bike rack, and a draw-tite 2" hitch. Im looking to replace the locking knob which wedges the rack in place in the hitch. mechanism is actually OK, but the lock cylinder itself is fubar I need 15 bolt length with a 8mm thread. I also have taps and dies, if I would need to swap over to SAE sizes Can you steer me toward any of your parts? THANKS!

asked by: Russ

Expert Reply:

While we do not have the replacement locking knob you're needing for your ARKSEN bike rack we do have a wide variety of replacement bolts that we can help you with.

With your old bolt being a M8 x 15mm metric bolt, you're going to need to swap it over to SAE as we do not have a corresponding replacement. To do this, you're going to need the Replacement Hex Bolt for Dexter Model 6 Actuators # T1781500.

This bolt is 5/16" x 1/2" which is going to be the closet we carry to what you currently are using. The 15mm length translates to a little over 1/2" and M8 rounded to the nearest 64th inch is 5/16".

Since you mentioned you already have drill taps you'll just have to re-tap the hole and you'd be good to go.

expert reply by: Bryce D